I get these sorts of notices from time-to-time. They're generic computer-generated messages that may or may not apply to you specifically. I know it feels icky when you feel like you're doing your best to do everything right & then you get something like this. But much of the time, it's nothing personal. Perhaps you might want to personal message one of the moderators of the forum you were trying to go into so as to put your mind at ease? Please take care.